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Hasso Hertel
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D-6230 Frankfurt am Main 80, DE
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Patent Grant
Process for the preparation of water-insoluble azo dyes on the fibe...
Patent number
4,906,250
Issue date
Mar 6, 1990
Hasso Hertel
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...